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AMDGPU: Correct costs of saturating add/sub intrinsics (#100808)
These are directly legal with fast instructions.
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‎llvm/test/Analysis/CostModel/AMDGPU/arith-ssat.ll

Lines changed: 0 additions & 72 deletions
Original file line numberDiff line numberDiff line change
@@ -104,7 +104,6 @@ define i32 @add(i32 %arg) {
104104
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %V4I64 = call <4 x i64> @llvm.sadd.sat.v4i64(<4 x i64> undef, <4 x i64> undef)
105105
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 48 for instruction: %V5I64 = call <5 x i64> @llvm.sadd.sat.v5i64(<5 x i64> undef, <5 x i64> undef)
106106
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 48 for instruction: %V8I64 = call <8 x i64> @llvm.sadd.sat.v8i64(<8 x i64> undef, <8 x i64> undef)
107-
<<<<<<< HEAD
108107
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %I32 = call i32 @llvm.sadd.sat.i32(i32 undef, i32 undef)
109108
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V2I32 = call <2 x i32> @llvm.sadd.sat.v2i32(<2 x i32> undef, <2 x i32> undef)
110109
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V4I32 = call <4 x i32> @llvm.sadd.sat.v4i32(<4 x i32> undef, <4 x i32> undef)
@@ -126,29 +125,6 @@ define i32 @add(i32 %arg) {
126125
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 32 for instruction: %V32I8 = call <32 x i8> @llvm.sadd.sat.v32i8(<32 x i8> undef, <32 x i8> undef)
127126
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 66 for instruction: %V33I8 = call <33 x i8> @llvm.sadd.sat.v33i8(<33 x i8> undef, <33 x i8> undef)
128127
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 66 for instruction: %V64I8 = call <64 x i8> @llvm.sadd.sat.v64i8(<64 x i8> undef, <64 x i8> undef)
129-
=======
130-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I32 = call i32 @llvm.sadd.sat.i32(i32 undef, i32 undef)
131-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V2I32 = call <2 x i32> @llvm.sadd.sat.v2i32(<2 x i32> undef, <2 x i32> undef)
132-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %V4I32 = call <4 x i32> @llvm.sadd.sat.v4i32(<4 x i32> undef, <4 x i32> undef)
133-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %V8I32 = call <8 x i32> @llvm.sadd.sat.v8i32(<8 x i32> undef, <8 x i32> undef)
134-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 54 for instruction: %V9I32 = call <9 x i32> @llvm.sadd.sat.v9i32(<9 x i32> undef, <9 x i32> undef)
135-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 96 for instruction: %V16I32 = call <16 x i32> @llvm.sadd.sat.v16i32(<16 x i32> undef, <16 x i32> undef)
136-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I16 = call i16 @llvm.sadd.sat.i16(i16 undef, i16 undef)
137-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V2I16 = call <2 x i16> @llvm.sadd.sat.v2i16(<2 x i16> undef, <2 x i16> undef)
138-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V4I16 = call <4 x i16> @llvm.sadd.sat.v4i16(<4 x i16> undef, <4 x i16> undef)
139-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %V8I16 = call <8 x i16> @llvm.sadd.sat.v8i16(<8 x i16> undef, <8 x i16> undef)
140-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %V16I16 = call <16 x i16> @llvm.sadd.sat.v16i16(<16 x i16> undef, <16 x i16> undef)
141-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 96 for instruction: %V17I16 = call <17 x i16> @llvm.sadd.sat.v17i16(<17 x i16> undef, <17 x i16> undef)
142-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 96 for instruction: %V32I16 = call <32 x i16> @llvm.sadd.sat.v32i16(<32 x i16> undef, <32 x i16> undef)
143-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.sadd.sat.i8(i8 undef, i8 undef)
144-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V2I8 = call <2 x i8> @llvm.sadd.sat.v2i8(<2 x i8> undef, <2 x i8> undef)
145-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %V4I8 = call <4 x i8> @llvm.sadd.sat.v4i8(<4 x i8> undef, <4 x i8> undef)
146-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %V8I8 = call <8 x i8> @llvm.sadd.sat.v8i8(<8 x i8> undef, <8 x i8> undef)
147-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 32 for instruction: %V16I8 = call <16 x i8> @llvm.sadd.sat.v16i8(<16 x i8> undef, <16 x i8> undef)
148-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 64 for instruction: %V32I8 = call <32 x i8> @llvm.sadd.sat.v32i8(<32 x i8> undef, <32 x i8> undef)
149-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 132 for instruction: %V33I8 = call <33 x i8> @llvm.sadd.sat.v33i8(<33 x i8> undef, <33 x i8> undef)
150-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 132 for instruction: %V64I8 = call <64 x i8> @llvm.sadd.sat.v64i8(<64 x i8> undef, <64 x i8> undef)
151-
>>>>>>> d7824fab6ee1 (TTI: Check legalization cost of abs nodes (#100523))
152128
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
153129
;
154130
; SLOW-SIZE-LABEL: 'add'
@@ -250,7 +226,6 @@ define i32 @sub(i32 %arg) {
250226
; FAST-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %V4I64 = call <4 x i64> @llvm.ssub.sat.v4i64(<4 x i64> undef, <4 x i64> undef)
251227
; FAST-NEXT: Cost Model: Found an estimated cost of 96 for instruction: %V5I64 = call <5 x i64> @llvm.ssub.sat.v5i64(<5 x i64> undef, <5 x i64> undef)
252228
; FAST-NEXT: Cost Model: Found an estimated cost of 96 for instruction: %V8I64 = call <8 x i64> @llvm.ssub.sat.v8i64(<8 x i64> undef, <8 x i64> undef)
253-
<<<<<<< HEAD
254229
; FAST-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %I32 = call i32 @llvm.ssub.sat.i32(i32 undef, i32 undef)
255230
; FAST-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V2I32 = call <2 x i32> @llvm.ssub.sat.v2i32(<2 x i32> undef, <2 x i32> undef)
256231
; FAST-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V4I32 = call <4 x i32> @llvm.ssub.sat.v4i32(<4 x i32> undef, <4 x i32> undef)
@@ -272,29 +247,6 @@ define i32 @sub(i32 %arg) {
272247
; FAST-NEXT: Cost Model: Found an estimated cost of 32 for instruction: %V32I8 = call <32 x i8> @llvm.ssub.sat.v32i8(<32 x i8> undef, <32 x i8> undef)
273248
; FAST-NEXT: Cost Model: Found an estimated cost of 66 for instruction: %V33I8 = call <33 x i8> @llvm.ssub.sat.v33i8(<33 x i8> undef, <33 x i8> undef)
274249
; FAST-NEXT: Cost Model: Found an estimated cost of 66 for instruction: %V64I8 = call <64 x i8> @llvm.ssub.sat.v64i8(<64 x i8> undef, <64 x i8> undef)
275-
=======
276-
; FAST-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %I32 = call i32 @llvm.ssub.sat.i32(i32 undef, i32 undef)
277-
; FAST-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %V2I32 = call <2 x i32> @llvm.ssub.sat.v2i32(<2 x i32> undef, <2 x i32> undef)
278-
; FAST-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %V4I32 = call <4 x i32> @llvm.ssub.sat.v4i32(<4 x i32> undef, <4 x i32> undef)
279-
; FAST-NEXT: Cost Model: Found an estimated cost of 32 for instruction: %V8I32 = call <8 x i32> @llvm.ssub.sat.v8i32(<8 x i32> undef, <8 x i32> undef)
280-
; FAST-NEXT: Cost Model: Found an estimated cost of 108 for instruction: %V9I32 = call <9 x i32> @llvm.ssub.sat.v9i32(<9 x i32> undef, <9 x i32> undef)
281-
; FAST-NEXT: Cost Model: Found an estimated cost of 192 for instruction: %V16I32 = call <16 x i32> @llvm.ssub.sat.v16i32(<16 x i32> undef, <16 x i32> undef)
282-
; FAST-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %I16 = call i16 @llvm.ssub.sat.i16(i16 undef, i16 undef)
283-
; FAST-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V2I16 = call <2 x i16> @llvm.ssub.sat.v2i16(<2 x i16> undef, <2 x i16> undef)
284-
; FAST-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V4I16 = call <4 x i16> @llvm.ssub.sat.v4i16(<4 x i16> undef, <4 x i16> undef)
285-
; FAST-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %V8I16 = call <8 x i16> @llvm.ssub.sat.v8i16(<8 x i16> undef, <8 x i16> undef)
286-
; FAST-NEXT: Cost Model: Found an estimated cost of 32 for instruction: %V16I16 = call <16 x i16> @llvm.ssub.sat.v16i16(<16 x i16> undef, <16 x i16> undef)
287-
; FAST-NEXT: Cost Model: Found an estimated cost of 192 for instruction: %V17I16 = call <17 x i16> @llvm.ssub.sat.v17i16(<17 x i16> undef, <17 x i16> undef)
288-
; FAST-NEXT: Cost Model: Found an estimated cost of 192 for instruction: %V32I16 = call <32 x i16> @llvm.ssub.sat.v32i16(<32 x i16> undef, <32 x i16> undef)
289-
; FAST-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %I8 = call i8 @llvm.ssub.sat.i8(i8 undef, i8 undef)
290-
; FAST-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %V2I8 = call <2 x i8> @llvm.ssub.sat.v2i8(<2 x i8> undef, <2 x i8> undef)
291-
; FAST-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %V4I8 = call <4 x i8> @llvm.ssub.sat.v4i8(<4 x i8> undef, <4 x i8> undef)
292-
; FAST-NEXT: Cost Model: Found an estimated cost of 32 for instruction: %V8I8 = call <8 x i8> @llvm.ssub.sat.v8i8(<8 x i8> undef, <8 x i8> undef)
293-
; FAST-NEXT: Cost Model: Found an estimated cost of 64 for instruction: %V16I8 = call <16 x i8> @llvm.ssub.sat.v16i8(<16 x i8> undef, <16 x i8> undef)
294-
; FAST-NEXT: Cost Model: Found an estimated cost of 128 for instruction: %V32I8 = call <32 x i8> @llvm.ssub.sat.v32i8(<32 x i8> undef, <32 x i8> undef)
295-
; FAST-NEXT: Cost Model: Found an estimated cost of 264 for instruction: %V33I8 = call <33 x i8> @llvm.ssub.sat.v33i8(<33 x i8> undef, <33 x i8> undef)
296-
; FAST-NEXT: Cost Model: Found an estimated cost of 264 for instruction: %V64I8 = call <64 x i8> @llvm.ssub.sat.v64i8(<64 x i8> undef, <64 x i8> undef)
297-
>>>>>>> d7824fab6ee1 (TTI: Check legalization cost of abs nodes (#100523))
298250
; FAST-NEXT: Cost Model: Found an estimated cost of 10 for instruction: ret i32 undef
299251
;
300252
; SLOW-LABEL: 'sub'
@@ -332,7 +284,6 @@ define i32 @sub(i32 %arg) {
332284
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %V4I64 = call <4 x i64> @llvm.ssub.sat.v4i64(<4 x i64> undef, <4 x i64> undef)
333285
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 48 for instruction: %V5I64 = call <5 x i64> @llvm.ssub.sat.v5i64(<5 x i64> undef, <5 x i64> undef)
334286
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 48 for instruction: %V8I64 = call <8 x i64> @llvm.ssub.sat.v8i64(<8 x i64> undef, <8 x i64> undef)
335-
<<<<<<< HEAD
336287
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %I32 = call i32 @llvm.ssub.sat.i32(i32 undef, i32 undef)
337288
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V2I32 = call <2 x i32> @llvm.ssub.sat.v2i32(<2 x i32> undef, <2 x i32> undef)
338289
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V4I32 = call <4 x i32> @llvm.ssub.sat.v4i32(<4 x i32> undef, <4 x i32> undef)
@@ -354,29 +305,6 @@ define i32 @sub(i32 %arg) {
354305
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 32 for instruction: %V32I8 = call <32 x i8> @llvm.ssub.sat.v32i8(<32 x i8> undef, <32 x i8> undef)
355306
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 66 for instruction: %V33I8 = call <33 x i8> @llvm.ssub.sat.v33i8(<33 x i8> undef, <33 x i8> undef)
356307
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 66 for instruction: %V64I8 = call <64 x i8> @llvm.ssub.sat.v64i8(<64 x i8> undef, <64 x i8> undef)
357-
=======
358-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I32 = call i32 @llvm.ssub.sat.i32(i32 undef, i32 undef)
359-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V2I32 = call <2 x i32> @llvm.ssub.sat.v2i32(<2 x i32> undef, <2 x i32> undef)
360-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %V4I32 = call <4 x i32> @llvm.ssub.sat.v4i32(<4 x i32> undef, <4 x i32> undef)
361-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %V8I32 = call <8 x i32> @llvm.ssub.sat.v8i32(<8 x i32> undef, <8 x i32> undef)
362-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 54 for instruction: %V9I32 = call <9 x i32> @llvm.ssub.sat.v9i32(<9 x i32> undef, <9 x i32> undef)
363-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 96 for instruction: %V16I32 = call <16 x i32> @llvm.ssub.sat.v16i32(<16 x i32> undef, <16 x i32> undef)
364-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I16 = call i16 @llvm.ssub.sat.i16(i16 undef, i16 undef)
365-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V2I16 = call <2 x i16> @llvm.ssub.sat.v2i16(<2 x i16> undef, <2 x i16> undef)
366-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V4I16 = call <4 x i16> @llvm.ssub.sat.v4i16(<4 x i16> undef, <4 x i16> undef)
367-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %V8I16 = call <8 x i16> @llvm.ssub.sat.v8i16(<8 x i16> undef, <8 x i16> undef)
368-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %V16I16 = call <16 x i16> @llvm.ssub.sat.v16i16(<16 x i16> undef, <16 x i16> undef)
369-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 96 for instruction: %V17I16 = call <17 x i16> @llvm.ssub.sat.v17i16(<17 x i16> undef, <17 x i16> undef)
370-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 96 for instruction: %V32I16 = call <32 x i16> @llvm.ssub.sat.v32i16(<32 x i16> undef, <32 x i16> undef)
371-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.ssub.sat.i8(i8 undef, i8 undef)
372-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V2I8 = call <2 x i8> @llvm.ssub.sat.v2i8(<2 x i8> undef, <2 x i8> undef)
373-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %V4I8 = call <4 x i8> @llvm.ssub.sat.v4i8(<4 x i8> undef, <4 x i8> undef)
374-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 16 for instruction: %V8I8 = call <8 x i8> @llvm.ssub.sat.v8i8(<8 x i8> undef, <8 x i8> undef)
375-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 32 for instruction: %V16I8 = call <16 x i8> @llvm.ssub.sat.v16i8(<16 x i8> undef, <16 x i8> undef)
376-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 64 for instruction: %V32I8 = call <32 x i8> @llvm.ssub.sat.v32i8(<32 x i8> undef, <32 x i8> undef)
377-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 132 for instruction: %V33I8 = call <33 x i8> @llvm.ssub.sat.v33i8(<33 x i8> undef, <33 x i8> undef)
378-
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 132 for instruction: %V64I8 = call <64 x i8> @llvm.ssub.sat.v64i8(<64 x i8> undef, <64 x i8> undef)
379-
>>>>>>> d7824fab6ee1 (TTI: Check legalization cost of abs nodes (#100523))
380308
; FAST-SIZE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
381309
;
382310
; SLOW-SIZE-LABEL: 'sub'

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